Check out this video that uses an animation created in SolidWorks Composer to show the basic assembly steps as well as the concepts of how a spray bottle works. Various features such as arrows and text boxes were used in order to show how liquid got sent out the nozzle. Creating instructional videos using SolidWorks Composer, allows you to easily control the position and movement of parts when explaining how an assembly goes together. I hope this video is clear in showing how a spray bottle works and is assembled.
Ian Jutras